3 ms·
There's nothing inconsistent with a form of matter which only interacts through gravity (plenty of matter does not interact with e.g. electromagnetism), especia
by rcxdude 6y ago
There's nothing inconsistent with a form of matter which only interacts through gravity (plenty of matter does not interact with e.g. electromagnetism), especially if you weaken the statement to a form of matter which we can only currently detect through the gravitation effects it seems to have.
- Filligree 6y agoAlthough it's always interesting to ask if there might be multiple kinds, which interact with each other in much the same way our own matter does. Not all that likely, I know, but good for an SF story.